Nathan chapman



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IMPROVEMENT IN ROLLER-TEMPLBS FOR LOOMS.

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.TO ALL WHOM IT MAY CONCERN:

Be it known that I, NATHAN CHAPMAN, of Hopedale, Worcester county, State of Massachusetts, have invented certain new and useful Improvements in Weavers Temples; and l do hereby declare the following description and accompanying drawings are suiiicient to enable any person skilled in the art or science to which it most nearly appertains, to make and use my said invention or improvements, Without `further invention or experiment.

The nature of my invention and improvements consist in the use of two ribbed or grooved rollers, or one ribbed or grooved roller and one plain roller, arranged in separate frames and pressed towards'each other on the clothby a spring, and allowed to turnV freely as the cloth ,is drawn through between them as it iswoven. In the accompanying drawings- Figure l is a plan.

Figure 2, a side elevation; and

Figure 3 an end elevation.

ln these drawings, A is a metal stand made in the form shown, or in such other form as will answer the purpose, and provided with a slot, B, for the bolts to fasten it to the breast beam of the loom. The rear end Cl of the stand A is perforated for the round end of the main bar D of the temple to traverse in, the centre of4 the har being made square, and it is fitted to traverse between the cheeks E on the front end of the stand A, and is held in place by the cap F,'fastened by thc pin Gt. The bar D'is provided with a knob, E, against which the spring l acts and presses the knob against the cheeks E, but when the shuttle stops between the reed and the temple, the spring yields and the 'temple is pushed back without injury to the shuttle, reed, or temple. The front end J of the bar D extends ofil at a right angle, and is made to form seats for thejournals of the lower roller K, which is fitted to turn freely in it. The end J has 'the small stahd L fastened to it by the screw M, as shown in the drawing, which extends down and is struck by the lathe or a screw in it to press the temple back and prevent it from being struck by the reed. The lever N may be made in the form. shown in the drawing, and fitted to vibrate freely ou the screw P, in the side nf the bar D. The front end of the lever N is provided with a recess for the upper roller Q, which turns on the screw-pin Rqwhich passes through it and screws into the lever. This lever N is arranged to hold the roller Q right over the roller K, and to press the fermer against the latter by the action of the spring S, on a stud in the under side of the armlll, of the lever N. The knob- H is perforated for the lower end of the spring S, and to allow the stud in the spring to be pressed into it when the weaver depresses the end of the lever to raise the upper roller Q, to put the edge of the cloth between theV rollers or removey it from them. The surfaces of the rollers K and Q, are represented as being grooved roundways, the ribs on one roller working into the grooves in the other\roller, which enables them to hold the cloth very firmly in the direction of the axles of the rollers, and allow it` to pass freely between the rollers as it iewoven. I contemplate that for some kinds of 'cloth it may be best to notch or score the ribs of the rollers, also` that one smooth and one ribbed roller may be used together, and that in weaving piled fabrics the upper roller will be required to be set with sharp points to held the cloth without pressing down the pile. Also that the rollers may be grooved spirally like a screw and connected by gears, or made with surfaces of India rubber or gutta percha,' or of compeursuof -`them.1 `"1" What I claim as my invention and improvements in weavers temples, is the use of two ribbed or grooved rollers, or one' ribbed or'g'rooved roller and one plain roller, arranged in separate frames, and pressed towards each other o: the cloth by a spring, and allowed to turn freely as the cloth is drawn through between them.

NATHAN CHAPMAN.

Witnesses:

J. DENMs, Jr., T. C. GoNNoLLY. 

